Declension table of ?dvātriṃśadupaniṣad

Feminine	Singular	Dual	Plural
Nominative	dvātriṃśadupaniṣat	dvātriṃśadupaniṣadau	dvātriṃśadupaniṣadaḥ
Vocative	dvātriṃśadupaniṣat	dvātriṃśadupaniṣadau	dvātriṃśadupaniṣadaḥ
Accusative	dvātriṃśadupaniṣadam	dvātriṃśadupaniṣadau	dvātriṃśadupaniṣadaḥ
Instrumental	dvātriṃśadupaniṣadā	dvātriṃśadupaniṣadbhyām	dvātriṃśadupaniṣadbhiḥ
Dative	dvātriṃśadupaniṣade	dvātriṃśadupaniṣadbhyām	dvātriṃśadupaniṣadbhyaḥ
Ablative	dvātriṃśadupaniṣadaḥ	dvātriṃśadupaniṣadbhyām	dvātriṃśadupaniṣadbhyaḥ
Genitive	dvātriṃśadupaniṣadaḥ	dvātriṃśadupaniṣadoḥ	dvātriṃśadupaniṣadām
Locative	dvātriṃśadupaniṣadi	dvātriṃśadupaniṣadoḥ	dvātriṃśadupaniṣatsu

Compound dvātriṃśadupaniṣat -

Adverb -dvātriṃśadupaniṣat